New logical plan: Merge schema fail if LoadFunc.getSchema return different
schema with "Load...AS"
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Key: PIG-1771
URL: https://issues.apache.org/jira/browse/PIG-1771
Project: Pig
Issue Type: Bug
Components: impl
Affects Versions: 0.8.0
Reporter: Daniel Dai
Assignee: Daniel Dai
Fix For: 0.8.0
The following script fail:
{code}
a = load '1.txt' as (a0:chararray, a1:chararray, a3, a4:map[]);
store a into '1.bin' using BinStorage();
auxData = LOAD '1.bin' USING BinStorage() AS (cookieId:chararray,
type:chararray, record:tuple(), state:map[]);
dump auxData;
{code}
Error message:
Caused by: org.apache.pig.impl.logicalLayer.FrontendException: ERROR 2246:
Error merging schema record#-1:tuple{} and null#-1:bytearray
at
org.apache.pig.newplan.logical.relational.LogicalSchema.merge(LogicalSchema.java:337)
at
org.apache.pig.newplan.logical.relational.LOLoad.getSchema(LOLoad.java:103)
at
org.apache.pig.newplan.logical.optimizer.SchemaResetter.visit(SchemaResetter.java:59)
at
org.apache.pig.newplan.logical.relational.LOLoad.accept(LOLoad.java:159)
at
org.apache.pig.newplan.DependencyOrderWalker.walk(DependencyOrderWalker.java:75)
at org.apache.pig.newplan.PlanVisitor.visit(PlanVisitor.java:50)
at
org.apache.pig.backend.hadoop.executionengine.HExecutionEngine.compile(HExecutionEngine.java:261)
... 12 more
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